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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef WEBGL_QUERY_H_
#define WEBGL_QUERY_H_
#include "mozilla/LinkedList.h"
#include "nsWrapperCache.h"
#include "WebGLObjectModel.h"
#include "nsThreadUtils.h"
namespace mozilla {
class WebGLQuery final
: public nsWrapperCache
, public WebGLRefCountedObject<WebGLQuery>
, public LinkedListElement<WebGLQuery>
{
friend class AvailableRunnable;
friend class WebGLRefCountedObject<WebGLQuery>;
public:
const GLuint mGLName;
private:
GLenum mTarget;
WebGLRefPtr<WebGLQuery>* mActiveSlot;
bool mCanBeAvailable; // Track whether the event loop has spun
////
public:
GLenum Target() const { return mTarget; }
bool IsActive() const { return bool(mActiveSlot); }
////
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLQuery)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLQuery)
explicit WebGLQuery(WebGLContext* webgl);
private:
~WebGLQuery() {
DeleteOnce();
};
// WebGLRefCountedObject
void Delete();
public:
WebGLContext* GetParentObject() const { return mContext; }
virtual JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto) override;
////
void BeginQuery(GLenum target, WebGLRefPtr<WebGLQuery>& slot);
void DeleteQuery();
void EndQuery();
void GetQueryParameter(GLenum pname, JS::MutableHandleValue retval) const;
bool IsQuery() const;
void QueryCounter(const char* funcName, GLenum target);
};
} // namespace mozilla
#endif // WEBGL_QUERY_H_
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